When the Voyager 1 and 2 spacecraft flew by Saturn in 1980 and 1981, they were able to pay only fleeting attention to Titan, the second largest moon in the solar system (larger even than the planet Mercury) and the only solar system moon with an appreciable atmosphere. These images are from subsequent Titan flybys in 2005 and 2006. - Image credit: NASA / JPL / University of Arizona

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New Cassini Image: Saturn's moon Rhea with the planet's tiny moon Epimetheus Credit: NASA/JPL-Caltech/Space Science Institute; Processed image: G. Ugarković

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Article : “NASA Moon Dust Probe Begins Lunar Science Mission” plus “Space Art” Pictures you Must See! | Take a Quick Break

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Pluto's giant moon Charon may have had a buried ocean. In July of 2015, NASA's New Horizons spacecraft will be the first to visit Pluto and Charon, and will provide the most detailed observations to date.

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Moon shown in highest resolution yet in image made of 32,000 pictures

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Luminous beauty of Jupiter's auroras revealed by Hubble telescope

Jupiter appearing to be wearing a luminous crown in this Hubble Space Telescope image showing an aurora over one of the planet’s poles.

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The sun is 400 times larger than the Moon but is 400 times further away from Earth making them appear the same size.

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This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft on 19 September 1997 at a range of more than 500,000 km (310,000 miles). Io (which is slightly larger than Earth's moon) is the most volcanically active body in the solar system. Colors are enhanced. Credit: NASA/JPL/University of Arizona

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